MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs, with one prominent external URI pointing to 'vilenefex.ru'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for multiple links, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://vilenefex.ru/strik?utm_term=how+to+row+on+the+total+gym PDF link annotation
- http://blubadgehelp.net/wikonovipemjfyor.pdfIn PDF document text
- http://bexemusu.mypressonline.com/5115861637.pdfIn PDF document text
- http://supportcopyright.net/41706804996lj27.pdfIn PDF document text
- http://rowefuzoj.mygamesonline.org/kedebupidaxuzefibuwux.pdfIn PDF document text
- http://imedo.ru/mosefamedereludiduvojatqsxd8.pdfIn PDF document text
- http://tadugebakonuged.getenjoyment.net/udemy_interior_design_free_course.pdfIn PDF document text
- http://wowunoli.22web.org/witevuvozojesif.pdfIn PDF document text
- http://clubstore.info/lasadijodng508.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f35d6857-a3f9-41bb-bda8-479d524f4dbf/flash_canon_430ex_ii_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4a0fd49-ae28-4d7d-b883-d703246b810e/41623552386.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/22edf5de-c057-495f-b58f-1cc7ad592220/japanese_video_games_online_store.pdfIn PDF document text
- http://tigagatu.atwebpages.com/anabaena_azollae.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a103697b-f715-4d4f-9139-3d506f8ba74f/ncdot_construction_entrance_detail.pdfIn PDF document text
- http://sajatuvireguta.atwebpages.com/molupananiwimodo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1a81d00-bcf4-46fc-bf33-3adb2c23b681/golotabojubod.pdfIn PDF document text
- http://bulumufojade.rf.gd/livro_walden_two.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3355fad9-3e7e-43c7-9d9f-33a776ffeb7b/jaybird_x3_not_pairing_with_iphone.pdfIn PDF document text
- http://bitujiduruv.myartsonline.com/ryobi_2000_psi_pressure_washer_parts_home_depot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d73326d1-dbfb-4f3c-b3e2-ffaaf43bb448/6097162297.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e53c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE53C | 6744 bytes |
SHA-256: 127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b |
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font_01_sfnt_off0000f623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF623 | 5076 bytes |
SHA-256: 3d8a070467fb3c0f781a57e2d61725f6ba7e53925de9bd33b63954ae5f423cee |
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font_02_sfnt_off00010753.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10753 | 11020 bytes |
SHA-256: 468917e93e532f7652589ffa959c7ea8fd9397af695388de02a8723a0c8bf90e |
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